The study looked at how river water flowing into a lagoon in Florida affects the water movement and mixing in the area. By analyzing different factors like water flow, weather, and density, the researchers found that the freshwater discharge from the river is the main factor influencing the lagoon's characteristics. The pressure from the river's flow and the density difference between the river water and the lagoon water play a big role in shaping the movement of water in the area. Additionally, wind can also change how the river water spreads out in the lagoon.